fix: address code review findings

internal/config/config.go

@@ -47,10 +47,13 @@ type TelegramConfig struct {
 }
 
 // ScannerConfig holds scanner engine parameters.
+//
+// Bootleg/Compilation filtering is intentionally unconditional: bootlegs,
+// promotions, and pseudo-releases are always excluded (musicbrainz/api.go),
+// and compilations are always included. These are not user-toggleable, so
+// there are no corresponding config fields.
 type ScannerConfig struct {
-	FuzzyThreshold      float64 `yaml:"fuzzy_threshold"`
-	IgnoreBootlegs      bool    `yaml:"ignore_bootlegs"`
-	IncludeCompilations bool    `yaml:"include_compilations"`
+	FuzzyThreshold float64 `yaml:"fuzzy_threshold"`
 }
 
 // LoadConfig reads a YAML file from path, parses it, applies defaults,